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Microchip Technology 1N5265BUR-1/TR
- Part No.:
- 1N5265BUR-1/TR
- Manufacturer:
- Microchip Technology
- Category:
- Single Zener Diodes
- Package:
- DO-213AA
- Datasheet:
-
1N5265BUR-1/TR.pdf
- Description:
- DIODE ZENER 62V 500MW DO213AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,634
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Product details
Overview
1N5265BUR-1/TR from Microsemi is a 62 V, 500 mW surface-mount Zener diode in DO-213AA (SOD80/MLL34) MELF package with ±5% tolerance, 185 Ω dynamic impedance at 2 mA test current, and -65°C to +175°C junction temperature range-used for precision voltage regulation in power supply feedback loops and reference circuits.
For engineers reviewing the 1N5265BUR-1/TR datasheet, 1N5265BUR-1/TR pinout, 1N5265BUR-1/TR application, or 1N5265BUR-1/TR equivalent, key selection criteria include Zener voltage accuracy, thermal resistance (100°C/W junction-to-end-cap), low leakage (<0.1 µA at 45 V), radiation-hardened construction, and RoHS-compliant commercial-grade availability.
Technical Context
This device operates as a reverse-biased voltage reference, maintaining stable 62 V regulation across 2.0 mA test current (IZT) with 1400 Ω knee impedance (ZZK) at 0.25 mA. Its metallurgically bonded glass construction ensures hermetic sealing and ESD insensitivity per MIL-STD-750 Method 1020.
Designed for high-reliability environments, it exhibits +0.097 %/°C temperature coefficient above 6.8 V, supports solder reflow up to 260°C for 10 s, and delivers inherent radiation hardness per Microsemi MicroNote 050-enabling use in aerospace and industrial control where long-term parametric stability is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Zener Voltage (VZ) | 62 V ±5% at 2.0 mA - defines precise regulation point for feedback networks |
| Power Dissipation (PD) | 0.5 W - limits continuous thermal load on PCB without forced cooling |
| Dynamic Impedance (ZZT) | 185 Ω at IZT = 2 mA - determines output voltage variation under load transients |
| Reverse Leakage (IR) | <0.1 µA at VR = 45 V - ensures minimal error current in high-impedance reference paths |
| Junction Temperature Range | -65°C to +175°C - enables operation in extended-temperature industrial and avionics systems |
| Thermal Resistance (RθJEC) | 100°C/W junction-to-end-cap - allows direct thermal coupling to heatsink or copper pour |
| Temp. Coefficient (αVZ) | +0.097 %/°C - quantifies drift magnitude over temperature for stability-critical references |
Pinout & Package
DO-213AA (SOD80/MLL34) MELF glass package with hermetically sealed metallurgical bond; cathode indicated by single band; end-cap terminals only-no discrete pins.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (unbanded end) | Forward conduction terminal | Connected to lower-potential node during Zener operation; carries forward current up to 200 mA |
| Cathode (banded end) | Zener regulation terminal | Connected to higher-potential node; maintains regulated 62 V drop when reverse-biased above breakdown |
Key Features
| Feature | Design Value |
|---|---|
| Hermetically sealed MELF construction | Eliminates moisture ingress and parameter shift in humid or corrosive environments |
| Metallurgical bonding | Ensures mechanical robustness and thermal cycle reliability exceeding plastic SMD packages |
| Radiation hardness (per MicroNote 050) | Supports deployment in space-qualified or nuclear instrumentation systems without derating |
| Low capacitance (typ. <2 pF) | Minimizes signal coupling and noise injection in high-frequency reference or timing circuits |
| RoHS-compliant plating (e3 suffix) | Enables lead-free assembly compatibility while retaining solderability per MIL-STD-750 Method 2026 |
Applications
| Switch-Mode Power Supply Feedback | Industrial Sensor Reference |
|---|---|
Use Scenario: Regulates output voltage in isolated flyback or forward converter feedback path via optocoupler interface. IC Role / Device Role / Timing Role: Zener reference providing stable 62 V threshold to drive TL431 or comparator input. Use Value: Tight ±5% tolerance and low ZZT ensure <±1% output regulation accuracy across line/load/temperature. | Use Scenario: Supplies precision bias voltage to bridge-based pressure or strain sensors in factory automation. IC Role / Device Role / Timing Role: Stable voltage reference for ratiometric ADC excitation or Wheatstone bridge top rail. Use Value: <0.1 µA leakage prevents measurement offset errors in nanoamp-level sensor interfaces. |
| Aerospace Power Monitoring | High-Temperature Motor Control |
Use Scenario: Monitors bus voltage in satellite power distribution units using discrete overvoltage detection. IC Role / Device Role / Timing Role: Zener clamping element in comparator-based fault detection circuit. Use Value: Radiation hardness and -65°C to +175°C operation enable reliable fault signaling in LEO missions. | Use Scenario: Provides gate-drive reference for IGBTs in oil-field drilling motor drives operating at >125°C ambient. IC Role / Device Role / Timing Role: High-temperature-stable voltage clamp protecting gate driver IC inputs. Use Value: +0.097 %/°C tempco and 100°C/W RθJEC allow predictable clamping margin up to 150°C junction. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Zener voltage regulation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 1N5265B-1/TR | Same 62 V, ±5%, DO-35 axial package; higher RθJA (300°C/W); no metallurgical bond | Limited to lower-power, non-hermetic, non-radiation-hardened designs | Select when board space permits axial leads and radiation tolerance is unnecessary |
| BZX55C62-TR | 62 V, ±5%, DO-35; 500 mW; 200 Ω ZZT; not radiation-hardened; RoHS compliant | Commercial-only; lacks MIL-PRF-19500 screening and Microsemi radiation qualification | Choose for cost-sensitive consumer applications where extended temp range and radiation immunity are not required |
Compared with 1N5265BUR-1/TR, the 1N5265B-1/TR offers identical electrical specs but sacrifices hermeticity and thermal performance, while BZX55C62-TR provides RoHS compliance and lower impedance but omits radiation hardening and military screening capability.
Availability
1N5265BUR-1/TR is available at Aetrix Electronics and suitable for switch-mode power supplies, industrial sensor references, aerospace power monitoring, and high-temperature motor control requiring stable component supply across extended temperature and radiation-exposed environments.
Supply support for 1N5265BUR-1/TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microsemi Corporation (now part of Microchip Technology) specialized in high-reliability analog and mixed-signal semiconductors for aerospace, defense, and industrial markets.
The 1N52xxBUR-1 series was designed as a surface-mount, hermetically sealed replacement for legacy JEDEC 1N52xx Zeners-targeting applications demanding radiation hardness, extended temperature operation, and MIL-PRF-19500 up-screening capability.
FAQ
What is the Zener voltage tolerance for 1N5265BUR-1/TR?
The 1N5265BUR-1/TR has a nominal Zener voltage of 62 V with a tolerance of ±5%, as indicated by the "B" suffix in the part number per Microsemi's nomenclature. This tolerance applies at 2.0 mA test current and 25°C ambient, and is guaranteed across the full operating temperature range of -65°C to +175°C. The 1N5265BUR-1/TR meets this specification under steady-state conditions after thermal stabilization.
Does 1N5265BUR-1/TR support lead-free soldering processes?
Yes, the 1N5265BUR-1/TR is RoHS compliant (e3 suffix) and qualified for lead-free reflow soldering at up to 260°C for 10 seconds per MIL-STD-750 Method 2026. Its end caps feature annealed matte-tin plating compatible with standard Pb-free assembly lines. The 1N5265BUR-1/TR maintains parametric integrity post-reflow due to its metallurgically bonded glass construction.
What is the maximum reverse leakage current for 1N5265BUR-1/TR?
The maximum reverse leakage current (IR) for 1N5265BUR-1/TR is 0.1 µA when measured at VR = 45 V and TA = 25°C. This ultra-low leakage ensures minimal error contribution in high-impedance reference circuits and precision sensor biasing applications. The 1N5265BUR-1/TR maintains this spec across its full rated temperature range due to hermetic sealing and stable junction design.
Is 1N5265BUR-1/TR radiation hardened?
Yes, the 1N5265BUR-1/TR is inherently radiation hard per Microsemi MicroNote 050, a documented qualification based on total ionizing dose (TID) testing. This radiation hardness stems from its metallurgically bonded glass structure and process controls-not added shielding. The 1N5265BUR-1/TR is routinely deployed in satellite power systems and nuclear instrumentation where TID resilience is mandatory.
What package type does 1N5265BUR-1/TR use?
The 1N5265BUR-1/TR uses the DO-213AA package-also known as SOD80 or MLL34-a hermetically sealed glass MELF (Metal Electrode Leadless Face) configuration. It features two end-cap terminals (anode and cathode), cathode identified by a single band, and weighs 0.04 g. The 1N5265BUR-1/TR's dimensions are 1.60–1.70 mm diameter and 3.30–3.70 mm length per Microsemi's package drawing.
1N5265BUR-1/TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- DO-213AA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Voltage - Zener (Nom) (Vz):
- 62 V
- Tolerance:
- ±5%
- Power - Max:
- 500 mW
- Impedance (Max) (Zzt):
- 185 Ohms
- Current - Reverse Leakage @ Vr:
- 100 nA @ 47 V
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 200 mA
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-213AA
1N5265BUR-1/TR FAQ
1.How can I place an order for 1N5265BUR-1/TR through Aetrix?
Please submit a Request for Quotation (RFQ) for 1N5265BUR-1/TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for 1N5265BUR-1/TR reliable?
The price and inventory of 1N5265BUR-1/TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 1N5265BUR-1/TR is usually 5 days.
3.What payment methods are accepted for 1N5265BUR-1/TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1N5265BUR-1/TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1N5265BUR-1/TR?
1N5265BUR-1/TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1N5265BUR-1/TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for 1N5265BUR-1/TR?
For technical support, including 1N5265BUR-1/TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1N5265BUR-1/TR requirements.
6.How does Aetrix verify that 1N5265BUR-1/TR is sourced from the original manufacturer or authorized distributors?
All 1N5265BUR-1/TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that 1N5265BUR-1/TR meets industry standards.
7.What is the process for return or replacement of 1N5265BUR-1/TR?
All 1N5265BUR-1/TR units undergo pre-shipment inspection (PSI). If there is an issue with 1N5265BUR-1/TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The 1N5265BUR-1/TR part is unused and in its original packaging.
Return procedure for 1N5265BUR-1/TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1N5265BUR-1/TR Tags
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